Finding the Fourth Proportional to 21,797.18, 30,082.83 and 12,368.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,797.18 : 30,082.83 = 12,368.78 : x
2. Step 2: Convert to fraction form
   21,797.18/30,082.83 = 12,368.78/x
3. Step 3: Cross multiply
   21,797.18x = 30,082.83 × 12,368.78
4. Step 4: Simplify right side
   21,797.18x = 372,087,906.05
5. Step 5: Solve for x
   x = 372,087,906.05/21,797.18
6. Step 6: Final answer
   x = 17,070.46